Q195 Hlau
Chemical Composition: Q195 steel muaj 0.06% mus rau 0.12% carbon, mus txog 0.50% manganese (Mn), mus txog 0.30% silicon (Si), mus txog 0.035% phosphorus (P), thiab mus txog 0.040% sulfur (S).
Mechanical Properties: Nws lub zog tawm los yog 195 MPa, thiab nws lub zog tensile yog 315 txog 430 MPa. Qhov elongation ntawm cov qauv nrog ib txoj kab uas hla tsawg dua lossis sib npaug li 40 mm yog kwv yees li 33%.
Daim ntaub ntawv: Q195 steel tsis muaj zog tab sis siab plasticity, toughness, thiab weldability, yog li nws yog feem ntau siv rau cov qauv siv, xws li kev tsim cov hlau, daim hlau, thiab cov kav dej. Nws kuj yog siv rau hauv cov vov tsev vaj huam sib luag, cov vaj huam sib luag zoo nkauj, thiab cov thawv ntim khoom.
Q235 Steel Qib
Tshuaj muaj pes tsawg leeg:Q235 steelmuaj cov ntsiab lus carbon ntau dua li Q195 steel. Q235A muaj cov ntsiab lus carbon ntawm 0.14% rau 0.22%, thaumQ235Btuaj yeem muaj cov ntsiab lus carbon txog 0.20%. Nws kuj muaj txog li 1.40% manganese, mus txog 0.35% silicon, thiab mus txog 0.045% thiab 0.050% phosphorus thiab sulfur, feem.
Mechanical Properties:Q235 steelmuaj lub zog tawm los ntawm 235 MPa thiab lub zog tensile ntawm 370 txog 500 MPa. Qhov elongation ntawm cov qauv nrog ib txoj kab uas hla tsawg dua lossis sib npaug li 40 mm yog kwv yees li 26%.
Daim ntawv thov:Q235 steelyog siv nyob rau hauv structural thiab engineering daim ntaub ntawv uas yuav tsum tau muaj zog me ntsis. Nws yog feem ntau dov rau hauv ntau yam duab, xws li hlau, lub kaum sab xis steel, channel steel, thiab phaj, siv rau hauv kev tsim kho, tsheb, txuas hniav, thiab boilers.
Q355 Steel Qib
Chemical Composition: Q355 steel yog qis- alloy siab- lub zog steel nrog cov ntsiab lus carbon feem ntau ntawm 0.20% thiab 0.25% (Q355B). Nws muaj txog li 1.40% manganese, mus txog 0.30% silicon, thiab mus txog 0.035% thiab 0.040% phosphorus thiab sulfur, feem.
Mechanical Properties: Q355 steel muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab lub zog tensile ntau ntawm 470-630 MPa. Nws muaj qhov elongation ntawm kwv yees li 22% thiab muaj kev cuam tshuam zoo; Q355D tuaj yeem tiv taus qhov kub thiab txias li -20 degree.
Daim ntaub ntawv: Vim nws lub zog siab thiab tawv, Q355 steel yog dav siv hauv cov khoom hnyav- cov haujlwm xws li txuas hniav, siab - cov tsev nce siab, thiab cov tshuab hnyav. Nws kuj tseem siv rau hauv kev tsim cov nkoj, lub nkoj siab, thiab lwm yam khoom siv uas yuav tsum tau muaj kev thauj khoom siab -cov kabmob muaj peev xwm.
Hauv cov ntsiab lus, Q195 steel yog tsim rau kev siv dav dav uas yuav tsum tau ua kom muaj zog thiab tsim tau zoo, thaum Q235 steel ua rau muaj kev sib npaug ntawm lub zog thiab kev tsim kho, ua rau nws tsim nyog rau nruab nrab load- cov ntaub ntawv bearing. Q355 steel muaj ntau dua lub zog thiab tawv, ua rau nws zoo tagnrho rau hnyav- cov ntawv thov kev ua haujlwm uas xav tau kev ua haujlwm ruaj khov. Txhua qib steel muaj nws cov kev siv tshwj xeeb, nyob ntawm lub zog, kev tsim, thiab ib puag ncig uas xav tau los ntawm qhov project.
